Anti-erosion effectiveness of selected crops and the relation to leaf area index (LAI)
Klima, K.(University of Agriculture, Krakow (Poland). Dept. of Agricultural Chemistry) | Wisniowska-Kielian, B.E-mail:[email protected]
The effect of fodder beet, winter triticale and horse bean on the intensity of soil losses in an area affected with water erosion was studied during the years 2000-2003. The research was conducted on a hillside (16%) with simulated rainfall (105 mm; 1.75 mm/min) applied at seven different developmental stages of the plants. The protective efficiency started at about 60% (fodder beat), 30% (horse bean) and 15% (triticale) of covering the soil surface. The influence of aerial parts (x) on the soil erosion (y) can be described as follows: fodder beet: y = -9.37x + 29.4 (R2=0.677); horse bean: y = -8.44x + 26.41 (R2=0.698); triticale: y = -4.98x + 15.61 (R2=0.66). The results were used to verify nomograms determining the value of the C indicator (cropping factor) present in USLE equation for the plants tested under similar conditions.
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